A Novel Preamble Design for Multi-Cell OFDMA Downlink Systems

摘要：

In this paper a novel preamble is designed for MultiCell Orthogonal Frequency Division Multiple Access downlink system, in which multiple carrier frequency offset exists between mobile station and multiple base stations. The preamble preceded downlink frame from every base station manifests 4-period pattern in one OFDMA symbol by modulating cell/sector ID specific sequence on one of every four subcarriers. This structure enables application of MUSIC algorithm to estimate up to three carrier frequency offset Liu& Lins method, namely increasing the interval of cyclic prefix to form approximately the same foursegment preamble, fails in case of three CFOs. Whereas the estimation algorithm based on the new preamble structure has low complexity and better performance.

关键词： multi-cell orthogonal frequency-division multiple access multiple carrier frequency offset MUSIC algorithm

作者: Jian Sun Min Hu Chunye Zhang

作者单位: School of Information Science and Engineering Shandong University Jinan, China

会议类型: 国际会议

会议名称: 2010 2nd International Conference on Signal Processing System(2010年信号处理系统国际会议 ICSPS 2010)

会议地点: 大连

会议语种:英文

页码: 2391-2394

在线出版日期: 2010-07-05（万方平台首次上网日期，不代表论文的发表时间）